Windows 2008R2 Failover Cluster - Validate simultaneous Failover failed

[nikkiP]

Hi -

I'm setting up Windows 2008R2 - two nodes failover cluster on Vsphere 4.0. The shared disks on SAN storage are configured to use Raw Disk Mapping Physical compatibility mode. When I run Validation test, the simulaneous failover validation failed with error "Failed to release cluster disk 1 , failure reason "The requested resources is in use". Has anyone seen this issue before? Do you know what can I do to fix the problem?

[weinstein5]

Welcome to the Forums - How do you have the RDM configured? Are you following the recommendations in the clistering guide - http://www.vmware.com/pdf/vsphere4/r41/vsp_41_mscs.pdf?

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[nikkiP]

We're running Vsphere 4.0.0, not 4.1. The MSCS nodes are setup on 2 different physical hosts. Yes, I did follow all the steps for setting up Clustered Disk. SCIS Controller is LSI Logic SAS. All clustered disk are on SCIS 1:0, 1:1, 1:2. The OS drive is created in eagerzeroedthick. As far as, I can tell everything is setup properly. During Failover validation test, all tests passed, except the simultaneous Failover validation failed everytime with error "Failed to release cluster disk 2 from Node 1, failure reason, the requested resource is in use . However, the test results are inconsistent, the error can be on any Disks and any nodes.

The I/O registry setting is already set to 60 by default on Windows 2008R2. I didn't have to change the value.

[BigBadJohnnyB]

Ever figure this out? I'm having a very similar issue. Feels like I did everything I was supposed to according to the guide, my SAN is in the HCL (Sun Openstorage 7000-series) and I get this error every time either Windows node reboots - on the way down and on the way up, right at POST.